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' (No Model.)

' R. S. HUNZEKER.

VEHICLE SPRING. No. 295,177. v Patented Mar. 18, 1884.

MILLESEEJR. hPElfilJll N. van: WI, wanm ova used for the purpose ofgiving an easy more the rnnninggear of the vehicle.

cross-section through the bolster of a wagon,

ihvrr grains Fastest, @FFKGE,

HIMSELF AND \VILLIAM A.

VEHiCLE- HERRON, OF SAME PLACE.

SPRENG.

SPECIFICATION forming part of Letters Patent No. 295,177, dated March18, 1884. Application filed August 10, 1883. (X0 model.) I

2"0 all whom it'mrq concern.-

Be it known that I, RUDOLPH S. HUNZEKER, of Pittshnrg, in the county ofAllegheny and State of Pennsylvania, have invented a new and usefulImprovement in Vehicle-Springs; and I do hereby declare thefollowingtobe a full, clear, and exact description thereofi,

My invention relates to that class of vehiclesprings wherein spirals arecombined with saddles, suspension-brackets, and like devices forsustaining the bed or body of the vehicle.

I am aware that spiral springs have. been ment to the bodies ofvehicles, in some and most cases the spring being interposed between thebearing and weight to be supported and operated by compressiomand inother: cases the weight has been suspended byspiral springs mounted in ahollow standard, or spiral springs extending in a line nearly horizontalbetween the body of the vehicle and end and side bars. Both of theseforms are inefficient, as they either are insecureainstable, and liableto weaken and destroy the springs, or fail to form a firm. perfect, anddirect spring action between the frame or body and My devicesditt'erfrom these in thatadirect, firm, and posi tive action is given tothe spring. which is not materially weakened by use. This is owing tothe position of the springs and the manner of attaching them to thevehicle.

I will'now describe my invention, so that others skilled in the art maymanufacture and use thesame, reference being bad to the accompan yingdrawings, forming apart ofthis specification, in which Figure l is avertical cross-section through one of the side bars, showing the spiralspring connecting the end of the elliptical spring to the side bar. Fig.2 is a detached view of the spiral springs, the plate for securing thesprings to the side-bar, and the bolt for securing the end of ellipticalspring to the spiralsprings. Fig. 3 is a detached plauview of the plate.Fig. 4 is a plan view of the frame of a vehicle having ellipticalsprings, showing my improvement. Fig. 5 is a vertical showing myimproved springs adapted to not i between the body of the wagon and thebolster.

Fig. 6 is a side elevation of a portion of the bolster. Fig. 7 is adetached view of a portion of the securingplate.

Like letters of reference indicate like parts wherever they occur.

In the drawings, A representsthc top bar of the vehicle mounted on thefront axle. B represents the rear axle, and 0 represents the side barsextending from the rear axle to the head bar. The body of the vehiclerests on elliptical springs D, which extend from one side bar to theother, and the ends of which are secured thereto.

Instead of securing the ends of the elliptical springs D directly to theside bars, I secure them to the ends of a double spiral spring, EF,which extends vertically down from the side bars. This spiral springconsists ot'two spirals, E F, extcndiugparallel to each other, havingloops or eyes E F at their ends, and connected by a straight barextending horizontally at right angles to the direction of the spiralportion of the spring. This spring is secured to the lower or under sideof the side bars a, by

a plate, G,i n the face of which is a groove for the reception of thebar portion of the spring E F and a clip, H, which encircles the upperside of the side bars, and the ends of which pass through holes G in theplate G and are secured on the under side of the plate by the nuts H,the ends of the clip being threaded, the bar F. of the spring E F beingheld between the lower side of the side bar and the groove in the upperface of the plate G. The ends of the elliptical springs D are pivotallyattached to the ends of the spirals E F by a bolt, I, passing throughthe eyes E F and an eye, D, formed at the end of the elliptical springs.This bolt I is secured by ahead at one end and a not at the other, or byupsetting the ends of the bolt after it is placed in position. Theelliptical springs D may be of any of the forms I now in general use.

bolster of awagon or vehicle not provided with other springs. In thismodification the same form of spiral spring is employed, excepting thatit is stronger and heavier, the purpose being to support the entireweight,

l instead of acting to relieve a particular part.

Bolted or otherwise secured to the underside of the body of the wagon isa bracket, JK, the arms of which extend vertically down on each side ofthe bolster L. The bar E extends across and rests on the upper side ofthe bolster L and the plate M, in the face of which is a groove, M,which fits under the bar E. This plate is secured to the upper side ofthe bolster by screws or bolts passing through holes in the plate. Thespirals E F extend downward vertically on each side of the bol ster L,parallel with and inside of the arms J Kof the bracket.

Passing through eyes J K in the ends of the arms of the bracket, andthrough the eyes E Fof the spirals, is a belt, I, already described. Thebody N of the wagon is thus held up from the bolster, being supported bythe bracket and suspended from the bolster by the spiral springs E F,while the springs are prevented from being broken or injured by tooheavy a the direct jars and strain, and a cheap and durable spring isafforded for heavy farm and other wagons and vehicles.

Having thus described my invention, what I claim, and desire to secureby Letters Patent,'is

1. Aspring having two or more spirals parallel with each other andunited by a crosspiece at their upper ends, the spirals being arrangedto act by extension in lines on or approximating the same verticalplane, substantially as and for the purpose specified.

2. In a wagon or other vehicle, a double spiral spring having two ormore spiralsjoined or connected at their upper ends, the spirals actingby extension, the body of the vehicle being suspended from the lowerends thereof, substantially as and for the purpose specified.

8. In avehicle having side bars and springs extending transverselybetween the same, the

COll'lblllit'tlOlJfiVlth the side bars and transverse springs,ofinterposed extensible spiral springs arranged to suspend the transversesprings 5 RUDOLPH S. HUNZEKER.

\Vitnessesi W. B. Conwin, THOMAS W. BAKEW'ELL.

